public class Application {
    public static void main(String[] args) {
        Pillar pillar;
        Geometry bottom;
        bottom  = new Rectangle(12,22);
        pillar = new Pillar(bottom,58);
        System.out.println("矩形底的柱体的体积"+pillar.getVolume());
        bottom = new Circle(10);
        pillar = new Pillar(bottom,58);
        System.out.println("圆柱底的柱体的体积"+pillar.getVolume());
    }
}
